Department of Commerce. Bureau of the Census. Office of the Associate Director for Decennial Census. Geography Division. (1/1987 - 7/15/2011). 1950 Census Enumeration District Maps - New York (NY) - Chautauqua County - Dunkirk - ED 7-23 to 53. 1880-01-01/1990-12-31. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/24066730. (Accessed January 21, 2019.)

APA citation style

Department of Commerce. Bureau of the Census. Office of the Associate Director for Decennial Census. Geography Division. (1/1987 - 7/15/2011), (1880-01-01/1990-12-31) 1950 Census Enumeration District Maps - New York (NY) - Chautauqua County - Dunkirk - ED 7-23 to 53. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/24066730

MLA citation style

Department of Commerce. Bureau of the Census. Office of the Associate Director for Decennial Census. Geography Division. (1/1987 - 7/15/2011). Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/24066730>.

Note: These citations are programmatically generated and may be incomplete.